Process of obtaining terpenes and other products from wood.



fmimnmov. 14,1605.

El Bl PROCESS 0F' GBTAINING TERPBNBS AND OTHER PRODUCTS PROM Woon.

APPLICATION FILED JAN. lflQOO'. RENEWED APE. 8.1905.

Y Q I. i

WITNESSES:

tion.

, not aflect either t e Wood' or the this bath when heated Vseparating mig' fil ed with rosin, (indicated at 0,)

UNITED STATES PATENT .EDWARD B.' WERD,4 oF! CLEVELAND, oHIo,-ASSIGNR."BY MESE .lssIGN-V MENTs- To AWEEDD IsTILLING `AND MANUFAorURING oo MPANrifor NEW YORK, N. -fY A looRPoiaiTIoN oF NEWYORK.

Pr'focrssfo 'oer/xmms nner-:Nrs AND oTHER vPRODUCTS. FROM woon,-A

.To all whom it may concertar) Be it known that I, 4EDWARD UB. WEED, a citizen of the UnitedStates of America-residing at'Oleve1and,-ount of Cu ahoga, Ohio, have invented a new an useful" rocess of Ob,- taining Ter enes.and QtherProducts from Wood., of w, 'oh thefollowing is aspe'cifcae The object Offtiiisiziventit'is'wpovide-a process -by which' turpentine or other. terpenes, essential oils, 'or other'volatilefprod- 'l ucts, either 'prexistent or'lformed durin the from Woods w 'ch thorou hly methofs of process, can-be obtainedv contain them more rapidlyl and than is possible lWith the 'usual distillation.

In accordance Vwith the invention the woodv which contains the product toibe obtained or. 'the elementsv thereof vs subjected to the action of abath of rosin; which has a higher boiling-point than'the product t be obtainedv and-is substantiall neutral, so that it does roduot, om the Wood the roduct sought, Which is at"the same time istilledover fromithebath. The accompanying drawing'represent's one form of an apparatus suitable for carrying on the process, which a paratus will be described hereinafter, it gein understood that it is merely one convenient lorm' of apparatus chosen for eXplan'ationof the nature of the invention. 'Y '-The apparatus referred 'to comprises in substance a still A, provided with a lcap a, hav# an outlet-pipe a.- The still is partially which is in -a liquid condition when heated, but has a boilingpoint higher than that of the tur-pentine or other product to be obtained from the .Specification of Letters Patent. A lpplagion met January; re, 1900, Renewed Aprile, 1905. serio No.

the .Wood is volatilized `and leaves -For other Wood. The'w'ood which contains theprod4 uct sought or the elements thereof, as represented at B, is immersed' in the bathcontained in the bath being raised to al'de ee which is suflf, cient to volatilize the pro u etto be obtained from the wood, while itis not sufficient to still, the 'temperatu re` of thel 45 v'olatilze the bath` itself, which thus communicates the necessary -healttothe IWood and facilitates the volatilization" and separation of the product tobe obtained'. Forthc" extraction of tur entine vthe-'tem e'ature of the bath Vis raise to`about-320- .alii-enlieit,v

at whichl temperature the. turpen'tine .Within the Wood. products the temperature ofthe" -bath may be raised subse degree until fnallyallv of t e volatile-constituents ofthe wool may be separated, leavin the pure carbon. The time of treatment Vo vthe Wood as Well'as the` temperature ofl the bath'will vary in different cases, according to the .nature of the product, to be i obtained from the wood. A It will be understood that the volatile products driven off -fromthe Wood as described passfthrou'ghthe still `and are condensed in the usual manner.' l I claim asmy invention;-` f The process of obtaining volatile products A from wood which" consists in subjecting the Wood to a bath of resin, the point of volatilization .of the'desired p uct,and distillin'g, ove rl't l;1e`p1 d1`1et;l-

In testimony wher A.tion,'. in the Jprese'ncel,it two 'tnesses,"thi a p (Luentlytoa. higher, i

. 1 Y i i heating the bath to odfil Signffthis 'apprte f 1 5` 

